Fire-resistant and heat-insulating door/wall structure

ABSTRACT

The invention relates to a fire-resistant and heat-insulating door/wall structure, which is installed inside a hollow door plank or wallboard frame that is made of a refractory material. The characteristic of the invention lies in that the fire-resistant and heat-insulating structure is in the form of board enabling at least a foamed block board to have a layer of cement insulated material attached thereto. The cement insulated material is made up of mixing thermally expansible material with other organic or inorganic fire-resistance. Accordingly, when the invention is burning by a fire, the foamed block board is rapidly melted by the heat, and at the same time, the heat enables the cement insulated material to inflate and fill the inner frame instantly. Thus the invention enables the frame to be filled compactly with the cement insulated material after inflation, so as to possess better fire-resistant and heat-insulating effects.

BACKGROUND OF THE INVENTION

I. Field of the Invention

The present invention relates to a “fire-resistant and heat-insulatingdoor/wall structure”, especially to a door/wall structure that applies asimplified and modulated structure with the advantage of easy andconvenient construction, so as to effectively achieve the fire-resistantand heat insulation effects, as well as increase the structural strengthof said door plank or wallboard.

II. Description of the Prior Art

Generally, a conventional fire-resistant and heat-insulating door/wallstructure is a hollow plank that is made of a metal or specialrefractory material, of which the fireproof characteristic performs thefire prevention function. Nevertheless, said conventional structure onlyperforms the fire prevention function in a very short period of timewithout the heat insulation effect of separating the heat on the otherside of the door/wall in case of a naked flame. Thus said conventionalfire-resistant door/wall is easily burnt down or deformed, and the heatand/or fire spread from one side of the door/wall to the other side.Therefore, said conventional fire-resistant door/wall is unable toeffectively achieve the fire-resistant and heat insulation functions; inaddition, the conventional fire-resistant door/wall has the drawbacks ofpoor collision-resistant strength, inferior soundproof effect and easilydeformed characteristic, due to its hollow plank structure.

To solve the foregoing drawbacks of said conventional fire-resistantdoor/wall structure, another fire-resistant door/wall structure enablesthe interior of the hollow door plank or wallboard to be filled withfireproof glass wool, asbestos, or foamed plastic material, so as toretard the spread of fire load and heat. However, compared with a brickwall or a cement wall, said conventional hollow fire-resistantdoor/wallboard that contains a soft and low density fire-resistant glasswool, asbestos, or foamed plastic material filled thereon possessesinferior impact strength and heat-resistant effects; thereupon saidfire-resistant and heat-insulating door/wall structure has to beimproved.

The main objective of this invention is to provide a fire-resistant andheat-insulating door/wall structure that applies a simplified andmodulated structure with the advantage of easy and convenientconstruction, so as to effectively achieve the fire-resistant and heatinsulation effects.

Another objective of the invention is to provide a fire-resistant andheat-insulating door/wall structure, increasing the impact strength andsoundproof effect of a door plank or a wallboard.

SUMMARY OF THE INVENTION

In view of the above drawbacks, an innovative “fire-resistant andheat-insulating door/wall structure” is therefore disclosed hereafter.

The main objective of the present invention is to provide a foamed blockboard at least having a layer of cement insulated material attachedthereto; the cement insulated material is made up of mixing a thermallyexpansible material with other organic or inorganic fire-resistance.

Accordingly, the fire-resistant and heat-insulating structure of theinvention is formed as a plurality of boards, so as to be easily cut tofit various forms and shapes of door/wallboard frames. In case of thefire burns of said door/wallboard, the foamed block board inside thedoor/wallboard is rapidly melted by the heat, at the same time; the heatenables the cement insulated material to inflate inside the frame bodyinstantly. Seeing that the cement insulated material inflates in theframe of the door plank/wallboard, the whole frame is filled compactlyof inflated cement insulated material without leaving any space therein.Moreover, such material possesses a higher density to perform betterfire-resistant and heat-insulating effects. In addition, the doorplank/wallboard having a resemblance to a solid structure is able toincrease the characteristic of impact strength thereof.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an enlarged view of the present invention.

FIG. 2 is a three-dimensional exploded view showing the structure of theinvention.

FIGS. 3A-3C are three-dimensional perspective views showing preferredembodiments in accordance with the invention.

DESCRIPTION OF THE PREFERRED EMBODIMENT

Further aspects, objects, and desirable features of the invention willbe better understood from the detailed description and drawings thatfollow in which various embodiments of the disclosed invention areillustrated by way of examples.

With reference to FIGS. 1-3, the “fire-resistant and heat-insulatingdoor/wall structure” of the invention mainly made of a fire-resistantand heat-insulating structure 10, which is installed in a frame 20 of ahollow door plank or wallboard that is made of a refractory material;the characteristic lies in that the fire-resistant and heat-insulatingstructure 10 is composed in the form of a board enabling at least aplank or a foamed block board 11 to have a layer of a cement insulatedmaterial 12 attached thereto; the cement insulated material 12 is madeup of mixing a thermally expansible material with other organic orinorganic fire-resistance and water and is spread or poured on saidfoamed block board 11 to form a resemblance to a cement plate afterhaving dried off. Said thermally expansible material is able to begraphite or other material with the identical property.

With reference to FIGS. 3A-3C, the fire-resistant and heat-insulatingstructure 10 is able to be arranged in three layers by placing a layerof the cement insulated material 12 into two pieces of the foamed blockboards 11 (as shown in FIG. 3B), or spreading a layer of the cementinsulated material 12 on both sides of a piece of the foamed block board11 (as shown in FIG. 3A), even more, by interlacing a plurality of saidfoamed block boards with the cement insulated material in four, five ormore layers. Moreover, said foamed block board 11 is able to form afillister 111 on the surface thereof for placing the cement insulatedmaterial 12 therein (as shown in FIG. 3C) to form a modulatedfire-resistant and heat-insulating structure 10. Furthermore, asheathing plate 112 is able to be made to cover the exterior of thecement insulated material 12, so as to lay the cement insulated material12 inside the foamed block board 11.

Accordingly, the contact surface of the foamed block board 11 and thecement insulated material 12 of the fire-resistant and heat-insulatingstructure 10 is either a flat surface, or a undulate rough surface, forthe cement insulated material 12 to be easily adhered thereto; the roughsurface is able to be in a form of either wave, reticular, granular orother irregular patterns on the surface.

Upon the assembly of the invention, the fire-resistant andheat-insulating structure 10 is made in the form of plank, so as to beeasily cut to fit for being placed into various forms and shapes ofdoor/wallboard frames 20. In case of the fire burns of thedoor/wallboard, the foamed block board 11 inside the door/wallboard israpidly melted by the heat, at the same time; the heat enables thethermally expansible material that is contained in the cement insulatedmaterial 12 to inflate inside the frame instantly. Seeing that thecement insulated material 12 inflates in the frame 20 of the doorplank/wallboard, the whole frame 20 is filled compactly with theinflated cement insulated material without leaving any space therein;such material possesses a higher density to perform betterfire-resistant and heat-insulating effects. In addition, the doorplank/wallboard having a resemblance to a solid structure is able toincrease the impact strength thereof.

Moreover, the surface of the foamed block board 11 is able to be spreadwith or immersed in a thin layer of said cement insulated material 12,before or after the combination of the foamed block board 11 and thecement insulated material 12; consequently, the foamed block board 11that is covered with a layer of the cement insulated material 12 is ableto prevent dense smoke or toxic substance during the melting process bythe heat, in case of the fire burns of the door/wallboard.

To sum up, the “fire-resistant and heat-insulating door/wall structure”of the invention has the characteristics of a simplified structurearrangement, easy and convenient to construct and substantiallyincreasing the practicality of fire-resistant and heat-insulatingfunctions, so as to possess the “practicability” in the industry field.

New characteristics and advantages of the invention covered by thisdocument have been set forth in the foregoing description. It is to beexpressly understood, however, that the drawings are for the purpose ofillustration only and are not intended as a definition of the limits ofthe invention. Changes in methods, shapes, structures or devices may bemade in details without exceeding the scope of the invention by thosewho are skilled in the art. The scope of the invention is, of course,defined in the language in which the appended claims are expressed.

1. A fire-resistant and heat-insulating door/wall structure, wherein thefire-resistant and heat-insulating structure is a structure beinginstalled in a frame of a door plank or wallboard that is made of arefractory material, the characteristic lies in: the fire-resistant andheat-insulating structure is a board enabling a foamed block board tohave at least a layer of cement insulated material attached thereto; thecement insulated material is made up of mixing thermally expansiblematerial with other organic or inorganic fire-resistance.
 2. Thefire-resistant and heat-insulating door/wall structure of claim 1,wherein the fire-resistant and heat-insulating structure is able to bearranged by interlacing a plurality of said foamed block boards with thecement insulated material.
 3. The fire-resistant and heat-insulatingdoor/wall structure of claim 1, wherein the contact surface in-betweenthe foamed block board and the cement insulated material is able to bean undulate rough surface.
 4. The fire-resistant and heat-insulatingdoor/wall structure of claim 1, wherein the surface of the foamed blockboard has a fillister enabling cement insulated material to be filledtherein.
 5. The fire-resistant and heat-insulating door/wall structureof claim 1, wherein the surface of the foamed block board covers a thinlayer of the cement insulated material.
 6. The fire-resistant andheat-insulating door/wall structure of claim 1, wherein the thermallyexpansible material contained in the cement insulated material is ableto be graphite.